Engine attachment



Nov. 14, v1933. Q MOBRAY 1,934,993

ENGI NE ATTACHMENT Filed March 17, 1932 2 Sheets-Sheet l f1 llo me y Inventor Nov. 14, 1933. c. MoBRAY ENGINE ATTACHMENT Filed March 17, 1932 2 Sheets-Sheet 2 Patented Nov. 14, 1933 f -f incassa.'v

ENGINEjArTACnMENT oeciiivmbray, Keyes, okla. Application Marcil 17, 1932. i. seria'i'ivp'.' sgasusf: sclaiisf (o1. 12a-119) Y.

`The presentfinvention" relates to an attachment for internal combustion engines and has for its primary object-5to pr'o'vide, inra `manner as hereinafter-setforth, means" for conducting the fumes from the crank case of the engine into the carburetor, thereby materially `incjreasing the e'iciency of the erigine'and reducing the consumptionof fuel.

Other objects" of the .invention are toprovide an attachment of the aforementioned character which f will besirple in co1'1st1`fuction`, strong, durablefefficient'and reliablein use and which may be manufactured at lowcost; f Y -'All ofthe foregoing' and still further objects and 'advantagesof lthe invention will become apparent from a study of the following specification, takenfin connection with theaccompanyin'g drawings wherein like characters of referencedesignate corresponding parts throughout the several views, andV wherein:-

Figure l is a view in side elevation of an engine,

' showing an attachment in accordance with this invention mounted thereon.

Figure 2 is an 'elevational view of the main portion of the attachment mounted in position on the engine, a portionof the latter being shown in vertical section.

Figure 3 is a view in vertical section through the main portion of thedevice.

vFigure 4 is a view in horizontal section, taken substantially on the line 4 -4 of Figure 3.V

Referring now! tothe drawings in detail, itr

will be seen that ythe embodiment of the invention which has been illustrated comprises a Vertically disposed, substantially 'tubular casing which is designated generally lby the reference numeral 1, said casing including comparatively largeand small upper and lower portions 2 vand 3, respectively, which are connected by a tapered portion 4 providing an inclined shoulder in the casing. The lower portion 3 of the casing ,1 is Vinsertable inthe filling'neck 5 of the vengine 6, as illustrated toadvantage in Figure '2 of the drawings. j

The engineillustrated isthatvof'a Model A Ford 1 automobile. Thelowerportion 3 of the casing 1 hasV formed thereon an external ange ven'-V gageable with the'upper end of Vthe fillingneck 5 Vand functioning as a stop. A .Y

The upper portion 2 of the casingl "is rounded,

9. A cap is mounted onf-the neckl 9. The cap` 10 may be the usual breathercap which' is mounted on the lling neck 5 of the engine 6.

as at 8, and terminates in an upstandingneck necting one end of a flexible conduit l2 tosaid casing. Theother end of the flexiblevconduit y12 is connected-to the air intakeY ofthe carburetor 13.ofthe engine. Y A f I In an upper portion of the casing, preferably 60 Vsubstar'itiallyin the horizontal plane of the nipple l1, are -the air intake` openings 14' which are coveredahy 4the screens-15. .An airregulatin'g closure 16 `of substantially C-.shaped horizontal section is mounted fonVerticalv sliding movement 35 in the-upper portion 2i ofthe casing 1 -forf'controlling.v the intake openings 14.A Guides 17 are mounted vertically in` theportion 2 o f; the casing and, in conjunction vwith said casing, ,denne channelsforithe'reception. of the ends or vertical 7g marginal vportionsof the; closurel. The handle 18j projects froml the closure vli-and isoperable in"a.vertical..slot-:19 provided therefor in the casing 1.

A baffle 20 isY mounted on the shoulder 4 in the 75 casing lto prevent `the splashing of the oil from the crankcaseof the. engine, ysaid crank casing being designated by the reference numeral 21. The baille 20 isy substantially in the form of an inverted cup and has its lower portion provided 8()` f f with'the substantially V`shaped notches 22-pro viding 'passages for the oil fumes. yIt is believed that the many advantages of an -attachment vconstructed inaccordance with the present invention will be readily understood, and w Y although the' preferred embodiment of-v the invention is as illustrated and described, it is to be f understood that changes in the details of construction and in the combination and arrangement of parts may be resorted to which will fall within the scope'of the invention as claimed.

- What is claimed is:-

l. An engine attachment comprising a casing s connected with the crank case of the engine and communicating therewithfor receiving the fumes therefrom, said casing havingV air inlet openings therein, a conduit V*connecting the casing `with the carburetor ofthe engine .for delivering the fumes and air theretdvguides mounted longitudinally in the casing, anda substantially C-shaped closure slidably mounted in the casing and en- Y gaged with the guides, Ysaid closure providing means for controlling the air inlet openings.

2.'An engine attachment comprising an elonf gated,v substantially tubular casing mounted ver- :.195 tically onthe filler neck of the crank case of the engine and communicating'with said crank case for receiving oil. fumes therefrom, said casing A nipple 11 projects laterally from the portionV g 2 of the casing 1 and provides means `for coni-3 having air inlet vopenings in an upper portion thereof, a flexible conduit connecting the casing 1.10

with the carburetor of the engine for the delivery of air and the fumes thereto, guides mounted vertically inthe casing, a substantially C- shaped closure for controlling the air inlet openings, slidably mounted for vertical movement in the casing and operatively engaged with the guides, and means for manually actuating the closure.

3. An engine attachment comprising an elongated, substantially tubular casing, said casing including comparatively large and small upperv and lower portions, respectively, and a tapered connecting portion, said connecting portion pro-` viding a shoulder in the casing, the free end portion of the lower portion being insertable in the lling neck of the engine crank, case for'mounting the casing in vertical position thereon for Gil) receiving fumes from said crank case, a'conduit connecting the casing with the carburetor of the engine, and a splash shield mounted in the casing, said splash shield being substantially in the form of an inverted cup mounted on the shoulder in the casing and having notches in its lower portion providing passages yfor the fumes. Y Y

4. An engine attachment comprising an elongated, substantially tubular casing, said casing including comparatively large and small upper and lower portions, respectivelyfand `a` taperedy connecting portion, saidconnecting portion 4providing a shoulder in the casing, the free end portion of the lower portion being insertable in the filling neck of the engine crank case for'mounting the casing in vertical position'thereon for "f receiving nfumes from said crank case, a conduit connecting the casing with the carburetor of the engine, and a splash shield mounted in the casing, said splash shield being substantially in the l neck. f

including comparatively large and small upper and lower portions, respectively, and a tapered connecting portion, said connecting portion providing ashoulder in the casing, the free end portion of the lower portion being insertable in the lling 'neck of the engine crank case for mounting the casing `in vertical position thereon for receiving fumes from said crank case, a conduit connecting the casing with the carburetor of the engine, and a splash shield mounted in the casing, said splash shield being substantially in the form ofl an inverted cup mounted on the shoulder in the kcasing and having notches in its lower portion providing passages for the fumes,

ksaid casing having air inlet openings in an upper portion thereof, guides mounted vertically in the casing, a substantially lC-shaped closure for controlling the airinlet openings, mounted for'vertical sliding movement in the casing and operatively engaged with the guides, and means for actuating the closure, the casing still further i including a rounded ktop portion-terminating in an upstanding neck, and a cap mounted on the y CECIL livioiaQRAY` Y le() 

